How Omega-3 and Omega-6 Fats in Preterm Breast Milk Change During Early Weeks of Breastfeeding
This study looked at breast milk from mothers of moderately preterm infants (born between 30-34 weeks) over the first three weeks after birth. Researchers measured levels of key fatty acids like arachidonic acid (AA) and DHA, as well as their breakdown products called oxylipins, which act as signaling molecules in the body.
They found that while the actual amounts of AA and DHA in the milk declined over the three-week period, many of the oxylipins made from these fats stayed steady or even increased. Interestingly, oxylipins derived from linoleic acid (an omega-6 fat) all rose significantly during this time.
This suggests that the mother’s body may be converting available fatty acids into these signaling molecules at different rates as lactation progresses, even as the raw fatty acid supply shifts.
What this means for you
This research helps scientists understand how the composition of breast milk naturally changes in the early weeks after a premature birth, offering a clearer picture of the nutritional building blocks and signaling compounds preterm infants receive from milk—information that may guide future nutrition research rather than any specific action for consumers today.
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Journal of pediatric gastroenterology and nutrition · 2026-09-07 · DOI: 10.1002/jpn3.70567
Read the original source ↗This summary is for educational purposes only and is not medical advice. Always talk to your healthcare provider before making changes to your supplement routine.